I have researched the ceddymod and in other threads people are saying that as long as you change the injector and sparkplug firing order then you can use the ceddy and evo scan. I want to know whether they mean I can use my ecu for the scan and flash or that I can now put an 98/99 ecu, I already have a 1g cas. In plain english why can't I use my eprom ecu or my non eprom 95 ecu, I really don't know and nobody is talking about the elephant in the room with its penis out.

Afroclipse said:

I have researched the ceddymod and in other threads people are saying that as long as you change the injector and sparkplug firing order then you can use the ceddy and evo scan. I want to know whether they mean I can use my ecu for the scan and flash or that I can now put an 98/99 ecu, I already have a 1g cas. In plain english why can't I use my eprom ecu or my non eprom 95 ecu, I really don't know and nobody is talking about the elephant in the room with its penis out.

Click to expand...

the 95 eprom and 96 - 97 non eprom ecu's aren’t flash programmable. period. sorry it is that way, but that’s how Mitsubishi did it. the only ecu's that can use ecu flash are the 98 - 99's in the black plastic case. you can use evoscan on all eclipses however the older the ecu is the slower evoscan log's. if your car was originally a 95 with the 95 ecu. Then you shouldn’t need the CAS if I understand it correctly. They should already have had the CAS on the back of the head. If that’s correct then the only thing you need to do is swap the spark plug firing order. If you are trying to install the 98 – 99 ecu in a car that had the CAS underneath the CAM gear then you either need to swap over to the 1G CAS and swap the spark plug firing order or swap both the injector and spark plug firing order.

Afroclipse said:

I have researched the ceddymod and in other threads people are saying that as long as you change the injector and sparkplug firing order then you can use the ceddy and evo scan. I want to know whether they mean I can use my ecu for the scan and flash or that I can now put an 98/99 ecu, I already have a 1g cas. In plain english why can't I use my eprom ecu or my non eprom 95 ecu, I really don't know and nobody is talking about the elephant in the room with its penis out.

Click to expand...

If you already have a 1g CAS then you shouldn't need to do any wire swapping, just put a 98/99 ecu in and wire in a flash connector.

Afroclipse said:

I have researched the ceddymod and in other threads people are saying that as long as you change the injector and sparkplug firing order then you can use the ceddy and evo scan. I want to know whether they mean I can use my ecu for the scan and flash or that I can now put an 98/99 ecu, I already have a 1g cas. In plain english why can't I use my eprom ecu or my non eprom 95 ecu, I really don't know and nobody is talking about the elephant in the room with its penis out.

Click to expand...

The older ones can not be flashed, and the EPROM ones you use an EPROM chip not a flash. This mod is not for EPROM either, only reflashable 98/99 ECU's.

If you're on the 1G CAS already with your 95, you'll run stock firing order on the plug wires and injectors for the 98/99 ECU.

Afroclipse said:

In plain english why can't I use my eprom ecu or my non eprom 95 ecu.

Click to expand...

The 98/99 ECUs have two key differences from all the rest of the DSM ECUs. The first is that they use a different CPU that doesn't run the same software as the earlier ECUs, second is that they have flash memory inside the CPU that allows the software to be changed.

The first is the big reason why you can't use an earlier ECU.

Just to be pedantic, though: if he has a '95 socketable ECU, it is tunable, just not with what is being discussed in this thread. He'd find the information on the dsm-ecu mailing list much more interesting. The '96 ECU is a paperweight without hardware changes.

(Veering offtopic a bit, I wonder if the Jackal folks have spent any time looking into porting to the '95 ECU? It's an HC11 like the earlier ECUs, no? I've spent almost no time at all looking at 2g ECUs, and haven't touched the 1g stuff in years, but aside from interrupts moving around and possibly some memory layout changes, the differences can't be that significant; especially since they're working from source. Eh, this is probably better discussed in a separate thread, I suppose.)

It gets really old dealing with the capacitor issues of 1g's after a while.

It does seem like the 1g and 2g EPROM ECU's are pretty much the same. Coding for some of the mods are identical.

jrohner said:

It gets really old dealing with the capacitor issues of 1g's after a while.

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! If it's done right you only have to deal with it once but try and imagine how old it must be for me at this point.

BTW the 2G ECUs are starting to leak too. So far it's been mainly early 95's but the same caps are used on later ones.

Can someone email me a stock ROM? I can't read my stock one cause it says there are no definitions for it.

The reason I want to bounce back to stock is cause I think some of my MAF values are off. My maf size was set to 316 or something like that and I know stock is 286. Now I'm not sure what else is stock or changed.

[email protected]

Hubbard, see Ceddy's website for a selection of stock ROMs and XML definitions.

logic said:

Hubbard, see Ceddy's website for a selection of stock ROMs and XML definitions.

Click to expand...

Downloaded/Updated all my definitions and whatever I pulled off my ECU still won't pull up. Says "unknown rom image".

I'll use one of those definitions though.

Afroclipse said:

I have researched the ceddymod and in other threads people are saying that as long as you change the injector and sparkplug firing order then you can use the ceddy and evo scan. I want to know whether they mean I can use my ecu for the scan and flash or that I can now put an 98/99 ecu, I already have a 1g cas. In plain english why can't I use my eprom ecu or my non eprom 95 ecu, I really don't know and nobody is talking about the elephant in the room with its penis out.

Click to expand...

NO NO NO! If you have a 1G CAS, you're good to go, the 1G CAS layout is the same as that of a 97+ CAS. Actually, your current 95-96 ECU is having troubles with your CAS, unless you're running DSMLink with CAS compensation enabled.

98/99 ECU only have trouble with stock 95/96 CAS sensor which is inverted!

[SECTION FOR CARS WITH 95/96 CAS SENSOR]
You can swap the plug wires, or, better alternative, swap coil pins at the ECU socket to compensate the spark. But the injector firing order will be off! This will cause misfires or rough behavior at some RPM ranges, but some people say they can live with it. I couldn't figure out how to swap the injector pins (I tried like 10 different ways), so the 98/99 ECU is still laying on the shelf.
[SECTION END]

If if you have 1G CAS or 97+ CAS, Ceddy mods and 98/99 ECU is awesome, it logs amazingly fast and the things you can do with your 98/99 ECU because of Ceddys research are awesome. If you have 1G CAS, go for it! You don't have to change anything.

For me, well... I'm trying to find a 1G or 2Gb CAS...

If I'm wrong, tell me, I'll erase all incorrect information from this post.

But the injector firing order will be off! This will cause misfires or rough behavior at some RPM ranges, but some people say they can live with it. I couldn't figure out how to swap the injector pins (I tried like 10 different ways), so the 98/99 ECU is still laying on the shelf.

Click to expand...

Swap injector plugs like this:
cylinder 1's plug goes to cylinder 2's injector
cylinder 3's plug goes to cylinder 1's injector
cylinder 4's plug goes to cylinder 3's injector
cylinder 2's plug goes to cylinder 4's injector

Or, swap ECU pins like this:
pin 1 goes to pin 14
pin 2 goes to pin 1
pin 15 goes to pin 2
pin 14 goes to pin 15

RRE Instructions

Edit: Sorry for the OT post Ceddy.

delta448 said:

Swap injector plugs like this:
cylinder 1's plug goes to cylinder 2's injector
cylinder 3's plug goes to cylinder 1's injector
cylinder 4's plug goes to cylinder 3's injector
cylinder 2's plug goes to cylinder 4's injector

Or, swap ECU pins like this:
pin 1 goes to pin 14
pin 2 goes to pin 1
pin 15 goes to pin 2
pin 14 goes to pin 15

RRE Instructions

Click to expand...

That's the problem, with 95/96 CAS you need to swap plug wires (or coil pins at the ECU) AND injectors or something. But it seemed that even if I did the coil swap and injector swap as per RRE instructions or counterclockwise/clockwise swaps, I still had the random knocks in logs.

As a side note, DSMLink asks you to swap plug wires (or coil pins) and apply the CAS fix if you use incompatible CAS.

Either way, this thread is for Ceddy mods, and I don't want to go OT. It would be nice to hear what the ECU does with the CAS, but pin/plug wire swapping info is probably best left outside this thread.

But again, if you use 1G CAS or 97+ CAS, the 98/99 Flashable ECUs are Plug and Play and are absolutely stunning because of Ceddy mods

You can get the car to run seemingly fine with the 95/96 CAS, however, only seemingly. I had to dump a ton of fuel into it just to keep things from knocking in the 2200-3000 rpm range. So you may say big deal, dump a bunch of fuel and things are fine. Not so either. EGTs skyrocket with the 95/96 cas, even if everything else seems fine, timing is all over the place too. I was pulling 1500 degree cruising temps at 65 mph with my 680s scaled to 500 with a latency of +.3. After switching to a 1g CAS, all else being equal, scaling my injectors to 650 with a latency of +.3 results in a nice 1200 degree 65 mph cruise, keep in mind I pull off the collector. The car is so much smoother as well.

I got my greentop CAS for 35 shipped, and if you're going to swap in the 98/99 ecu in a 95/96 you need to figure in an extra 50 or so for a 1g or 2gb CAS. It's not recommended, it's needed, until Ceddy gets the code sorted out for a software solution.

Also for those 95/96ers that are swapping over, if you're keeping your 7 bolt, don't follow the RRE CAS wiring diagram completely. Just snip the CAS plug off, leave about 3-4 inches or so and keep the plug. Pull the 3 CAS wires out of the loom, it travels with the injector wiring on top of the manifold. Now wire in the 1g or 2gb CAS to these wires. Refer to the RRE instructions for the 1g CAS pinouts since you won't be using the 4th pin for the crank signal. For the 2gb CAS, it only has 3 wires. I have one complete 2gb CAS setup, so send me a pm if anyone needs one.

draculia said:

You can get the car to run seemingly fine with the 95/96 CAS, however, only seemingly. I had to dump a ton of fuel into it just to keep things from knocking in the 2200-3000 rpm range. So you may say big deal, dump a bunch of fuel and things are fine. Not so either. EGTs skyrocket with the 95/96 cas, even if everything else seems fine, timing is all over the place too. I was pulling 1500 degree cruising temps at 65 mph with my 680s scaled to 500 with a latency of +.3.

Click to expand...

But did you swap the injector plugins to get the injector firing order correct?

May have found a potential contributor to my scaling problem too. My MAF Size and Scaling were a off a little bit from stock. I made a new map that I'll have to play with on Thursday.

95blackGsTurbo said:

I should have all the goodies ready to post on the Ford 1600cc injectors with speed density and ECU controlled boost by gear (speed) ready by the end of the week.

Click to expand...

Key to the 1600's is e85, tuning fuel pressure, very accurate deadtime figures, and locking in open loop. I still had tip in issuses, could have tuned them out a little more, but after burning 20 chips, i went with some rc 1,000's.

jrohner said:

But did you swap the injector plugins to get the injector firing order correct?

Click to expand...

Of course, pins were swapped at the ecu for injectors and coils. Madman also had issues as well. He did more experimenting than me, and still no luck.

It's not a big deal anyway, factor in a little extra dough and 20 minutes, and it's still the best damn deal going.

Where is the modifier for 1 byte load? I just looked over a log and 1byte load maxes out at 160.

Hubbard 0 said:

Where is the modifier for 1 byte load? I just looked over a log and 1byte load maxes out at 160.

Click to expand...

Are you using a old version?

Newer versions have the multiplier locked at x2, so it would max out at 320.

I'll have an adjustable multiplier in future versions, double word multiply and shifts were causing problems and I need to find some documentation on them.


2Byte Load can be used also, and has no max limit.

Ceddy said:

Are you using a old version?

Newer versions have the multiplier locked at x2, so it would max out at 320.

I'll have an adjustable multiplier in future versions, double word multiply and shifts were causing problems and I need to find some documentation on them.


2Byte Load can be used also, and has no max limit.

Click to expand...

I'm using 1.9 or whatever your most recent release is.

I guess I'll use 2byte load from now on.

I maxed out my 1-byte load yesterday & today. I finally ordered a MBC the other day, so once that gets here I'll at least have real boost control until you get ECU boost control working.


If you send me over the new SD, I'll probably give it a go again.

draculia said:

Of course, pins were swapped at the ecu for injectors and coils. Madman also had issues as well. He did more experimenting than me, and still no luck.

It's not a big deal anyway, factor in a little extra dough and 20 minutes, and it's still the best damn deal going.

Click to expand...

Do you use a 2gb camshaft when you swapped over the 1G CAS or did you drill your old one?

Ok, I finally flashed over to settings that actually work with my 850 injectors. It idles a little off at first start up and idle fuel trims are around 9%.

With it idling with a decent AFR (15.2 ish) I went to do a little driving. Cruising around seems to be a little lean and any significant throttle input resulted in a lot of lean. Flooring it resulted in that lean ness and then richens up a bit. Didn't have enough road to really go through a gear.

Is there a reason cruising and throttle inputs suck so much? I would have expected it to be a little better right off the bat.

What adjustments do I need to make to get this tip in situation better?